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73 Magazine (December 1969)


Published December 1969
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73 Magazine December 1969 (#111)

Quick, Easy, Dependable Transistor Diode Checker - For those who like checkered diodes ...... W6ICC 6
Did Samuel Morse Really Invent the Telegraph? - Telegraph? What's that? ...... W2FEZ 10
Combination Dummy Load/Attenuator Network - Also doubles as a hot plate for your coffee warming ...... W2EEY 14
Tuned Filter Chokes - The Easy Way - Can your filter chokes carry a tune? ...... W2OLU 18
Hey OM - You've Got Carrier There - "Drop dead, you knit-picker." ...... W4NVK 22
Bandswitching the Swan-250 and TV-2 - For both six and two meter operation lickety-split ...... K3LNZ 26
Cheap and Easy Selectivity - A CW audio filter for under $10. Cheap enough ...... W5INU 28
VHF-FM - Part III : Hand Held Portables - Part 3 in our effort to brainwash you in to trying FM ...... WB2AEB 30
Sunspots and the Ham - If you can't beat 'em, join 'em ...... WB2VFX 32
SSTV - Lecture at the International Congress of Amateur Television ...... SM0BUO 34
Amateur Radio in the Classroom - Drives the kids right out of their everlasting minds ...... K0HUD 40
The Galaxy RV-550 Remote VFO - Test Report from an excited and happy user ...... W6AJZ 48
Calculation Made a Little Easier - Stuff our dumb high schools should have taught ...... W1EZT 50
Universal Dual-Frequency Crystal Calibrator - Using those new IC circuits ...... W2EEY 58
Versatilize Your Transceiver - Adding incremental tuning, a blessing in no disguise ...... VE3ECU/W0 62
Transistor Class B and C Power Amplifier Design - Slide rule lovers, arise and rejoice... an article for you! ...... VK3ZRY 64
Two for Mobile - Power supplies, not a love story ...... K6ZFV 70
Amateur Microwave Frequency Meter - 1 to 10 ghz. Simple, but necessary test equipment for ghz tinkerers ...... K1CLL 72
Audio Organizer - Nice companion unit for the station transceiver ...... WB2WYO 77
Converting a CB Transceiver to Six Meters - What else can you do with them? ...... WB6BIH 78
Extra Class License Course, Part XI - Oscillators ...... Staff 82
Topographical Maps for the Radio Amateur - For transmitter hunts, and other hammy applications ...... W9VZR 102
Fascinating Fundamentals III : Magnetism - An irrelevant dip into history ...... W2FEZ 10

Index courtesy of http://www.qsl.net/kb9mwr/files/ham/73.html.


Year 1969
Language English
Collection 73-magazine; magazine_rack; additional_collections

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